I'm planning to get an original Xbox this week for some retro-ish gaming and was curious which games are only available on it.
Since I also own a 360 and a One X I figured there was no point in using it for games that are backwards compatible, since upscaling and stuff should make them better on the newer consoles.
Thus, after comparing the Wikipedia articles for backward compatible games and the entire OG Xbox game list (+trusty Excel VLOOKUP :) ), I ended up with the list below.
It's possible that a couple of games might be compatible due to using a different title in the 2 lists (I detected and removed FIFA World Cup 2006, for example), so if you come across any that are actually compatible and are on this list, post and I shall amend it :)
Enjoy!
007: Everything or Nothing
007: From Russia with Love
007: Nightfire
187 Ride or Die
2002 FIFA World Cup
50 Cent: Bulletproof
Æon Flux
AFL Live 2003
AFL Live 2004
AFL Live Premiership Edition
AFL Premiership 2005
Akumajo Dracula: Yami no Juin (JP)
Alfa Romeo Racing Italiano
Alien Hominid (separate version exists for newer Xbox consoles)
All-Star Baseball 2004
Alter Echo
American Chopper
American Chopper 2: Full Throttle
American McGee Presents: Scrapland
AMF Xtreme Bowling 2006
AND 1 Streetball
Angelic Concert (JP)
Animaniacs: The Great Edgar Hunt
Antz Extreme Racing
Aoi Namida (JP)
Arctic Thunder
Area 51
Army Men: Major Malfunction
Arx Fatalis
Azurik: Rise of Perathia
Backyard Wrestling 2: There Goes the Neighborhood
Backyard Wrestling: Don't Try This at Home
Barbarian
Bass Pro Shops: Trophy Bass 2007
Batman Vengeance
Batman: Dark Tomorrow
Battlefield 2: Modern Combat
Beat Down: Fists of Vengeance
Beyond Good & Evil (separate version exists for newer Xbox consoles)
Bicycle Casino
Big Bumpin'
Big Mutha Truckers 2
Bistro Cupid 2
Bistro Cupid (JP)
Blazing Angels: Squadrons of WWII
Blinx 2: Battle of Time and Space (JP)
Blood Wake
BloodRayne
Bloody Roar Extreme
Braveknight
Break Nine: World Billiards Tournament
Breeders' Cup World Thoroughbred Championships
Brian Lara International Cricket 2005
Broken Sword: The Sleeping Dragon
Brothers in Arms: Earned in Blood
Brothers in Arms: Road to Hill 30
Bruce Lee: Quest of the Dragon
Burnout Revenge
C.A.T.: Cyber Attack Team
Capcom Classics Collection Vol. 1
Capcom Classics Collection Vol. 2
Capcom Fighting Evolution
Capcom Fighting Jam (PAL) (JP)
Capcom vs. SNK 2 EO
Carmen Sandiego: The Secret of the Stolen Drums
Carve
Castlevania: Curse of Darkness
Cel Damage
Celebrity Deathmatch
Championship Bowling
Championship Manager 5
Championship Manager: Season 01/02
Championship Manager: Season 02/03
Charlie and the Chocolate Factory
Chase: Hollywood Stunt Driver
Chessmaster 10th Edition
CIRCUS DRIVE (JP)
Classified: The Sentinel Crisis
Club Football
Club Football 2005
Codename: Kids Next Door - Operation: V.I.D.E.O.G.A.M.E.
Cold Fear
Cold War
Colin McRae Rally 3
College Hoops 2K6
College Hoops 2K7
Combat: Task Force 121
Commandos: Strike Force
Conflict: Desert Storm II: Back to Baghdad
Conflict: Global Terror
Conflict: Vietnam
Conspiracy: Weapons of Mass Destruction
Corvette
Counter Terrorist Special Forces: Fire for Effect (EUR)
Crash 'n' Burn
Crash Tag Team Racing
Crazy Taxi 3: High Roller
Cricket 2005
Crimson Sea
Crusty Demons
CSI: Crime Scene Investigation
Curious George
Curse: The Eye of Isis
Daemon Vector
Dakar 2: The World's Ultimate Rally
Dance Dance Revolution Ultramix
Dance Dance Revolution Ultramix 2
Dance Dance Revolution Ultramix 3
Dance Dance Revolution Ultramix 4
Dance Stage Unleashed 2 (PAL)
Dance Stage Unleashed 3 (PAL)
Dance Stage Unleashed (PAL)
Dance: UK
Dark Summit
David Beckham Soccer
Dead Man's Hand
Dead or Alive Xtreme Beach Volleyball
Dead to Rights II
Def Jam: Fight for NY
Defender
Dejimon Warudo X (JP)
Delta Force: Black Hawk Down
Dennou Taisen: DroneZ
Destroy All Humans! 2
Deus Ex: Invisible War
Die Hard: Vendetta
Digimon World 4
Dino Crisis 3
Dinosaur Hunting
Disney's Extreme Skate Adventure
Double-S.T.E.A.L. - The Second Clash
Double-S.T.E.A.L. (JP)
Dr. Muto
Dr. Seuss' The Cat in the Hat
Dragon Ball Z: Sagas
Dragon's Lair 3D: Return to the Lair
Drihoo (JP)
DRIV3R
Driver: Parallel Lines
Dynasty Warriors 3
Dynasty Warriors 5
Ed, Edd n Eddy: The Mis-Edventures
Enclave
England International Football
Enter the Matrix
Eragon
ESPN International Winter Sports 2002
ESPN NBA 2K5
ESPN NBA 2Night 2002
ESPN NBA Basketball
ESPN NFL Football
ESPN NFL PrimeTime 2002
ESPN NHL Hockey
ESPN Winter X-Games Snowboarding 2002
ExaSkeleton
F1 2002
F1 Career Challenge
Fahrenheit (PAL)
Fallout: Brotherhood of Steel
Fantastic 4
Far Cry Instincts: Evolution
FIFA 06 Soccer
FIFA 2005
Fight Club
Fight Night Round 2
Fight Night: Round 3
FILA World Tour Tennis
Finding Nemo
Fire Blade
FlatOut 2
Flight Academy
Ford Bold Moves Street Racing
Ford Racing 2
Ford Racing 3
Frankie Dettori Racing (EUR)
Freestyle MetalX
Frogger: Ancient Shadow
Furious Karting
Galaxy Angel
Galleon
Gauntlet: Dark Legacy
Gene Troopers
Ghost Master: The Gravenville Chronicles
Gladiator: Sword of Vengeance
Gotcha!
Gravity Games Bike: Street. Vert. Dirt.
Greg Hastings Tournament Paintball
Group S Challenge
Guilty Gear Isuka[1]
Guilty Gear X2#Reload[2]
Gun
Gun Metal
GunGriffon: Allied Strike
Harry Potter: Quidditch World Cup
Headhunter Redemption
Hello Kitty: Mission Rescue (AS)
Hello Kitty: Roller Rescue
Heroes of the Pacific
High Heat Major League Baseball 2004
High Rollers Casino
Hitman 2: Silent Assassin
Hitman: Blood Money
Hummer Badlands
Hunter: The Reckoning: Redeemer
Ice Age 2: The Meltdown
IHRA Drag Racing 2004
IndyCar Series
Innocent Tears
Inside Pitch 2003
International Superstar Soccer 2
Iron Phoenix
Jacked
James Cameron's Dark Angel
Jaws Unleashed
Jikkyou World Soccer 2002
Jockey's Road
Juiced
Just Cause
Kakuto Chojin
Kao the Kangaroo: Round 2
Karaoke Revolution
Karaoke Revolution Party
Kikou Heidan J-Phoenix +
Kingdom Under Fire: Heroes
Knight's Apprentice: Memorick's Adventures
Knights of the Temple II
Knights of the Temple: Infernal Crusade
Knockout Kings 2002
Kung Fu Chaos
L.A. Rush
Lakemasters: Bass Fishing Game (JP)
Land of the Dead: Road to Fiddler's Green
Largo Winch: Empire Under Threat
Legacy of Kain: Defiance
Legends of Wrestling
Legends of Wrestling II
LMA Manager 2003
LMA Manager 2004
LMA Manager 2005
LMA Manager 2006
Lotus Challenge
Mace Griffin: Bounty Hunter
Mad Dash Racing
Madagascar
Madden NFL 06
Madden NFL 07
Madden NFL 08
Madden NFL 09
Madden NFL 2002
Madden NFL 2003
Madden NFL 2004
Madden NFL 2005
Mafia: The City of Lost Heaven
Magi Death Fight: Mahou Gakuen
Magic the Gathering: Battlegrounds
Major League Baseball 2K5
Major League Baseball 2K5: World Series Edition
Major League Baseball 2K6
Major League Baseball 2K7
Malice
Manchester United Manager 2005
Marc Ecko's Getting Up: Contents Under Pressure
Marvel: Ultimate Alliance
Mashed: Drive to Survive
MechAssault
Melbourne Cup Challenge
Men of Valor
Metal Dungeon
Metal Gear Solid 2: Substance
Metal Slug 3 (separate version exists for newer Xbox consoles)
Metal Slug 4
Metal Slug 5
Metal Wolf Chaos
Miami Vice
Midnight Club 3: DUB Edition
Midnight Club 3: DUB Edition Remix
Midnight Club II
Midtown Madness 3
Midway Arcade Treasures
Midway Arcade Treasures 2
Midway Arcade Treasures 3
Mission Impossible: Operation Surma
MLB Slugfest 2006
Mojo!
Monopoly Party
Monster 4x4: World Circuit
Mortal Kombat: Deadly Alliance
Mortal Kombat: Shaolin Monks
Motocross Mania 3
MotoGP 3
MTX: Mototrax
Muzzle Flash
MVP 06: NCAA Baseball
MVP Baseball 2005
MX 2002
MX Superfly
Myst IV: Revelation
N.U.D.E.@ Natural Ultimate Digital Experiment
Nakashima Tetsuya no Othello Seminar
Narc
NASCAR 07
NASCAR 2005: Chase for the Cup
NASCAR Heat 2002
NASCAR Thunder 2004
NBA 2K2
NBA 2K6
NBA 2K7
NBA Ballers: Phenom
NBA Inside Drive 2003
NBA Inside Drive 2004
NBA Jam
NBA Live 06
NBA Live 07
NBA Live 2003
NBA Live 2005
NBA Starting Five
NBA Street Vol. 2
NCAA College Football 2K3
NCAA Football 07
NCAA Football 08
NCAA Football 2003
NCAA Football 2004
NCAA Football 2005
NCAA March Madness 2004
Need for Speed: Carbon (separate version exists for newer Xbox consoles)
Need for Speed: Hot Pursuit 2
Need for Speed: Most Wanted
Need for Speed: Underground
Neighbours from Hell
New Legends
NFL Fever 2002
NFL Fever 2003
NFL Head Coach
NFL Street
NFL Street 2
NHL 06
NHL 07
NHL 2002
NHL 2003
NHL 2K6
NHL 2K7
NHL Hitz 20-02
NHL Hitz 20-03
NHL Rivals 2004
Nickelodeon Party Blast
NightCaster II: Equinox
Nobunaga no Yabou: Ranseiki
ObsCure
Oddworld: Stranger's Wrath
Operation Flashpoint: Elite
Outlaw Golf
Outlaw Golf: Holiday Golf (9 Holes of X-Mas)
Pac-Man World 2
Painkiller: Hell Wars
Peter Jackson's King Kong
Petit Copter
Phantasy Star Online Episode I & II
Pilot Down: Behind Enemy Lines
Pirates of the Caribbean
Pirates: Legend of the Black Buccaneer
Pirates: The Legend of Black Kat
Plus Plum 2
PocketBike Racer
Pool Shark 2
Powerdrome
Prince of Persia: The Two Thrones
Prince of Persia: Warrior Within
Prisoner of War
Pro Cast Sports Fishing
Pro Fishing Challenge
Project Snowblind
ProStroke Golf: World Tour 2007
Psi-Ops: The Mindgate Conspiracy
Psyvariar 2
Pulse Racer
Puyo Pop: Fever
R: Racing Evolution
RalliSport Challenge 2
Rally Fusion: Race of Champions
Ratatouille
Rayman 3: Hoodlum Havoc
Real World Golf
Red Ninja: End of Honor
Reign of Fire
Rent-A-Hero No. 1
RLH: Run Like Hell
RoboCop
Robot Wars: Extreme Destruction
Robotech: Invasion
Robots
RollerCoaster Tycoon
Rolling
Room Zoom
RPM Tuning (EUR)
Rugby 06
Rugby 2005
Rugby Challenge 2006
Rugby League
Samurai Shodown V
Scaler
SCAR : Squadra Corse Alfa Romeo (PAL)
Scooby-Doo! Mystery Mayhem
Scooby-Doo! Unmasked
SeaBlade
SeaWorld: Shamu's Deep Sea Adventures
Second Sight
Sensible Soccer 2006
Sentou Yousei Yukikaze: Yousei no Mau Sora
Serious Sam II
Shadow of Memories
Shikigami no Shiro
Shikigami no Shiro Evolution Blue
Shikigami no Shiro Evolution Red
Shikigami no Shiro II
Shin Megami Tensei: Nine
Shin Sangokumusou 2 (JP)
Shin Sangokumusou 4 (JP)
Showdown: Legends of Wrestling
Shrek
Shrek SuperSlam
Silent Scope Complete
Ski Racing 2005
Ski Racing 2006
Slam Tennis
Sneak King
Sniper Elite
Soldier of Fortune II: Double Helix
Spartan: Total Warrior
Special Forces: Nemesis Strike
Spikeout: Battle Street
Splashdown
Spy Hunter
Spy vs. Spy
SSX On Tour
SSX Tricky
Stacked with Daniel Negreanu
Star Trek: Shattered Universe
Star Wars: Obi-Wan
Starsky & Hutch
Steel Battalion
Steel Battalion: Line of Contact
Still Life
Stolen
Street Hoops
Strike Force Bowling
Stubbs the Zombie in Rebel Without a Pulse
Sudeki
Superman Returns
Superman: The Man of Steel
SVC Chaos: SNK vs. Capcom
SWAT: Global Strike Team
Syberia
Taito Legends
Taito Legends 2
Tak 2: The Staff of Dreams
Tak: The Great Juju Challenge
Takahashi Akiko no Mahjong Seminar
Tao Feng: Fist of the Lotus
Tecmo Classic Arcade
Teen Titans
Teenage Mutant Ninja Turtles 2: Battle Nexus
Teenage Mutant Ninja Turtles 3: Mutant Nightmare
Tenchu: Return from Darkness
Tenerezza
Tennis Masters Series 2003
Terminator 3: The Redemption
Test Drive Off-Road Wide Open
Tetris Worlds (Online Edition)
The Baseball 2002: Battle Ball Park Sengen
The Bible Game
The Chronicles of Riddick: Escape from Butcher Bay
The Dukes of Hazzard: Return of the General Lee
The Godfather: The Game
The Haunted Mansion
The Hobbit
The Hustle: Detroit Streets
The Italian Job
The King of Fighters 2002
The King of Fighters 2003
The King of Fighters: Maximum Impact
The Lord of the Rings: The Fellowship of the Ring
The Lord of the Rings: The Two Towers
The Matrix: Path of Neo
The Sims
The Sims Bustin' Out
The Suffering: Ties That Bind
The Warriors
The Wild Rings
Tiger Woods PGA Tour 06
Tiger Woods PGA Tour 2003
Tiger Woods PGA Tour 2004
Tiger Woods PGA Tour 2005
Tim Burton's The Nightmare Before Christmas: Oogie's Revenge
TOCA Race Driver 2: The Ultimate Racing Simulator
TOCA Race Driver 3
ToeJam & Earl III: Mission to Earth
Tom Clancy's Ghost Recon: Advanced Warfighter
Tom Clancy's Rainbow Six: Critical Hour
Tomb Raider: Legend (separate version exists for newer Xbox consoles)
Tony Hawk's Project 8
Top Gear RPM Tuning
Top Spin Tennis
Total Club Manager 2004
Total Club Manager 2005
Total Immersion Racing
Total Overdose: A Gunslinger's Tale in Mexico
Totaled!
Touge R
Tour de France
TransWorld Snowboarding
Triangle Again
Triangle Again 2
Triple Play 2002
Tron 2.0 Killer App
True Crime: New York City
UEFA Champions League 2004-2005
UEFA Euro 2004
UFC: Tapout
UFC: Tapout 2
Ultimate Beach Soccer
Ultimate Pro Pinball
Umezawa Yukari no Igo Seminar
Unreal Championship
Unreal II: The Awakening
Urban Chaos: Riot Response
Virtual Pool: Tournament Edition
Voodoo Vince
V-Rally 3
Wallace & Gromit in Project Zoo
Wallace & Gromit: The Curse of the Were-Rabbit
Whiplash
Whiteout
Wings of War
World Championship Poker
World Championship Poker 2: Featuring Howard Lederer
World Championship Pool 2004
World Championship Rugby
World Championship Snooker 2003
World Championship Snooker 2004
World Poker Tour
World Racing
World Racing 2
World Series Baseball 2K2
World Series of Poker
World Snooker Championship 2005
World War II Combat: Iwo Jima
World War II Combat: Road to Berlin
Wreckless: The Yakuza Missions
WTA Tour Tennis
WWE WrestleMania 21
XGRA: Extreme-G Racing Association
X-Men Legends
X-Men Legends II: Rise of Apocalypse
X-Men: Next Dimension
X-Men: The Official Game
Xyanide
Yager
Yetisports Arctic Adventures
Yonenaga Kunio no Shougi Seminar
ZillerNet